The first time I ever used SlingPlayer, a friend in the US invited me to watch his Tivo, even though I was on the other side of the world.
It worked a treat and ever since then I've been a big Slingbox fan. SlingPlayer is simply the software you need for watching content delivered by a Slingbox. Firstly, note that you need the correct version for your country in order for it to work - the download provided here is for the US version but other country versions can be found on the developer link. Also note that you'll need a Slingbox connected to your TV or router top use it.
SlingPlayer incorporates the company's own SlingStream technology to ensure that streaming is constant and reliable. Obviously, the effectiveness of this will also depend on your Internet connection speed, although this shouldn't influence it too much. Setting up SlingPlayer is very easy to setup due to the remote viewing assistant, which takes you through the simple task of adding a Slingbox to your player.
SlingPlayer is very basic - there are very few preferences, which could be annoying if you want to configure your content to be delivered in a specific way. However, the main job of SlingPlayer is simply to translate what your SlingBox is sending, so the developers can be forgiven somewhat for that. Once up and running, you control SlingPlayer via a virtual TV remote control which is very similar to the one that accompanies most real digital boxes. This gives SlingPlayer a unique feel and provides a realistic digital box viewing experience.
If you've got a Slingbox then you have little choice but to download SlingPlayer so you can start to enjoy the content from your Tivo or digital TV box anywhere you take your Mac with you.